Temperature of solar cells with regard to photoactive and non-photoactive light absorption in concentrator PV modules

Rumyantsev, Valery D. and Chekalin, Alexander V. and Davidyuk, Nikolay Yu and Malevskiy, Dmitriy A. and Shvarts, Maxim Z. and Luque López, Antonio and Andreev, Viacheslav M. (2014). Temperature of solar cells with regard to photoactive and non-photoactive light absorption in concentrator PV modules. In: "10th International Conference on Concentrator Photovoltaic Systems (CPV-10)", 07/04/2014 - 09/04/2014, Albuquerque, New Mexico, USA. pp. 154-157.

Description

Title: Temperature of solar cells with regard to photoactive and non-photoactive light absorption in concentrator PV modules
Author/s:
  • Rumyantsev, Valery D.
  • Chekalin, Alexander V.
  • Davidyuk, Nikolay Yu
  • Malevskiy, Dmitriy A.
  • Shvarts, Maxim Z.
  • Luque López, Antonio
  • Andreev, Viacheslav M.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 10th International Conference on Concentrator Photovoltaic Systems (CPV-10)
Event Dates: 07/04/2014 - 09/04/2014
Event Location: Albuquerque, New Mexico, USA
Title of Book: Temperature of solar cells with regard to photoactive and non-photoactive light absorption in concentrator PV modules
Título de Revista/Publicación: AIP Conference Proceedings
Date: 2014
ISSN: 0094-243X
Volume: 1616
Subjects:
Freetext Keywords: III-V solar cells, Concentrator modules, Temperature measurements
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A new method has recently been proposed by us for accurate measurement of the solar cell temperature in any operational regime, in particular, at a maximum power point (MPP) of the I-V curve (T-p-n(MPP)). For this, fast switching of a cell from MPP to open circuit (OC) regime is carried out and open circuit voltage V-oc is measured immediately (within about 1 millisecond), so that this value becomes to be an indicator of T-p-n(MPP). In the present work, we have considered a practical case, when a solar cell is heated not only by absorption of light incident upon its surface (called "photoactive" absorption of power), but also by heat transferred from structural elements surrounding the cell and heated by absorption of direct or diffused sunlight ("non-photoactive" absorption of power with respect to a solar cell). This process takes place in any concentrator module with non-ideal concentrators. Low overheating temperature of the p-n junction (or p-n junctions in a multijunction cell) is a cumulative parameter characterizing the quality of a solar module by the factor of heat removal effectiveness and, at the same time, by the factor of low "non-photoactive" losses.

More information

Item ID: 38850
DC Identifier: http://oa.upm.es/38850/
OAI Identifier: oai:oa.upm.es:38850
Official URL: http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4897050
Deposited by: Memoria Investigacion
Deposited on: 23 May 2016 18:55
Last Modified: 23 May 2016 18:55
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